Mirkwood Bats
43% of games where Mirkwood Bats resolved ended in a win for its controller, a +17.0 percentage-point lift over decks where it stayed in the library, on 207 observations.
Mirkwood Bats is in 8% of the 9514 Commander decks tracked on Playgroup Live. That is a narrow slice of the format, but the performance signal is clear: when this 4-mana Bat hits the battlefield, win rates climb sharply relative to games where it never left the library.
The cast-vs-library delta sits at +17.0 percentage points, and the lower bound of that confidence interval clears zero, making this one of the stronger lift signals in Playgroup Live's dataset. The catch is timing. Median first-cast turn is 6, well past the curve for a 4-mana creature. Players hold it an average of roughly two turns after drawing before casting it, suggesting they wait for a token engine to be in play first.
The commander distribution is wide. Mr. House, Frodo, and Chatterfang lead the top slots, confirming that Mirkwood Bats finds a home across Mardu token go-wide builds, Orzhov sacrifice loops, and Golgari pest engines alike. Any deck that consistently creates or sacrifices tokens treats this as a free damage multiplier strapped to a flier.
- 8% of tracked Commander decks include Mirkwood Bats
- 66% of drawn copies reach the battlefield before the game ends
- T6 median first-cast turn, reflecting the wait for a token engine
- 43% win rate in games where Mirkwood Bats was cast
- 57% battlefield stickiness once it resolves
- 677 distinct players have brought Mirkwood Bats to a tracked game
First-cast turn
n=219The "good card" funnel
1602 brought · 677 playersOf 1602 Mirkwood Bats brought to games, 330 were drawn, 219 of those were cast, and the majority of those resolved copies were still on the battlefield when the game ended.
Players who cast this card win 43% of the time (n=207) , vs 26% when it never left the library (n=1098).
When players drew this card but left it in hand, they won 17% (n=108) — about the same as leaving it in the library. Those players survived long enough to draw it, so the gap above is about the card resolving, not just about surviving.
Observed gap +17.0pp; 95% confidence interval +10.4pp to +23.7pp. Correlational, not causal: powerful payoffs also get cast more often in games you are already winning.
Final zone distribution
364 instancesMost Mirkwood Bats instances never leave the library, a baseline expectation for any singleton in a 100-card deck. What matters is that resolved copies end the game on the battlefield at a 57% rate.
Commanders that played this card
in tracked games-
1
Mr. House, President and CEO
63 decks
-
2
Frodo, Adventurous Hobbit
51 decks
-
3
Chatterfang, Squirrel General
35 decks
-
4
Witherbloom, the Balancer
33 decks
-
5
Smaug the Impenetrable
30 decks
-
6
Caesar, Legion's Emperor
24 decks
-
7
Ygra, Eater of All
24 decks
-
8
Marneus Calgar
22 decks
-
9
Sam, Loyal Attendant
18 decks
-
10
Korvold, Fae-Cursed King
14 decks
No single commander dominates. Mr. House leads with 788 total decks in the dataset, but the list spans Mardu, Orzhov, Golgari, and Sultai strategies, showing how broadly Mirkwood Bats slots into any token-matters shell.